CVE-2020-6805

moderate-risk
Published 2020-03-25

When removing data about an origin whose tab was recently closed, a use-after-free could occur in the Quota manager, resulting in a potentially exploitable crash. This vulnerability affects Thunderbird < 68.6, Firefox < 74, Firefox < ESR68.6, and Firefox ESR < 68.6.

Do I need to act?

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0.80% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.8/10 High
NETWORK / LOW complexity

Affected Products (6)

Affected Vendors

Mozilla Canonical

References (12)

Issue Tracking https://bugzilla.mozilla.org/show_bug.cgi?id=1610880
Third Party Advisory https://usn.ubuntu.com/4328-1/
Third Party Advisory https://usn.ubuntu.com/4335-1/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2020-08/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2020-09/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2020-10/
Issue Tracking https://bugzilla.mozilla.org/show_bug.cgi?id=1610880
Third Party Advisory https://usn.ubuntu.com/4328-1/
Third Party Advisory https://usn.ubuntu.com/4335-1/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2020-08/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2020-09/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2020-10/
46
/ 100
moderate-risk
Severity 30/34 · Critical
Exploitability 3/34 · Minimal
Exposure 13/34 · Low